Method drawOverlay

Engine/TrackerNode.cpp:726–1298

typedef std::map<double, CenterPointDisplayInfo> CenterPointsMap;

void
TrackerNode::drawOverlay(double time,
                         const RenderScale & /*renderScale*/,
                         ViewIdx /*view*/)
{
    double pixelScaleX, pixelScaleY;
    OverlaySupport* overlay = getCurrentViewportForOverlays();

    assert(overlay);
    overlay->getPixelScale(pixelScaleX, pixelScaleY);
    double viewportSize[2];
    overlay->getViewportSize(viewportSize[0], viewportSize[1]);
    double screenPixelRatio = overlay->getScreenPixelRatio();

    {
        GLProtectAttrib a(GL_CURRENT_BIT | GL_COLOR_BUFFER_BIT | GL_LINE_BIT | GL_POINT_BIT | GL_ENABLE_BIT | GL_HINT_BIT | GL_TRANSFORM_BIT);
        double markerColor[3];
        if ( !getNode()->getOverlayColor(&markerColor[0], &markerColor[1], &markerColor[2]) ) {
            markerColor[0] = markerColor[1] = markerColor[2] = 0.8;
        }

        std::vector<TrackMarkerPtr> allMarkers;
        std::list<TrackMarkerPtr> selectedMarkers;
        TrackerContextPtr context = getNode()->getTrackerContext();
        context->getSelectedMarkers(&selectedMarkers);
        context->getAllMarkers(&allMarkers);

        bool trackingPageSecret = context->getTrackingPageKnob()->getIsSecret();
        bool showErrorColor = _imp->ui->showCorrelationButton.lock()->getValue();
        TrackMarkerPtr selectedMarker = _imp->ui->selectedMarker.lock();
        bool selectedFound = false;
        Point selectedCenter;
        Point selectedPtnTopLeft;
        Point selectedPtnTopRight;
        Point selectedPtnBtmRight;
        Point selectedPtnBtmLeft;
        Point selectedOffset;
        Point selectedSearchBtmLeft;
        Point selectedSearchTopRight;

        for (std::vector<TrackMarkerPtr>::iterator it = allMarkers.begin(); it != allMarkers.end(); ++it) {
            bool isEnabled = (*it)->isEnabled(time);

            double thisMarkerColor[3];
            if (!isEnabled) {
                for (int i = 0; i < 3; ++i) {
                    thisMarkerColor[i] = markerColor[i] / 2.;
                }
            } else {
                for (int i = 0; i < 3; ++i) {
                    thisMarkerColor[i] = markerColor[i];
                }
            }

            bool isHoverMarker = *it == _imp->ui->hoverMarker;
            bool isDraggedMarker = *it == _imp->ui->interactMarker;
            bool isHoverOrDraggedMarker = isHoverMarker || isDraggedMarker;
            std::list<TrackMarkerPtr>::iterator foundSelected = std::find(selectedMarkers.begin(), selectedMarkers.end(), *it);